DiscoveryReference.cs :  » 2.6.4-mono-.net-core » System.Web » System » Web » Services » Discovery » C# / CSharp Open Source

// 
// System.Web.Services.Discovery.DiscoveryReference.cs
//
// Author:
//   Dave Bettin (javabettin@yahoo.com)
//   Lluis Sanchez Gual (lluis@ximian.com)
//
// Copyright (C) Dave Bettin, 2002
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System.IO;
using System.Xml.Serialization;

namespace System.Web.Services.Discovery{
  public abstract class DiscoveryReference {
    
    #region Fields

    private string defaultFilename;
    private DiscoveryClientProtocol clientProtocol;

    #endregion // Fields

    #region Constructors

    protected DiscoveryReference () 
    {
    }
    
    #endregion // Constructors

    #region Properties

    [XmlIgnore]
    public DiscoveryClientProtocol ClientProtocol {
      get { return clientProtocol; }      
      set { clientProtocol = value; }
      
    }
    
    [XmlIgnore]
    public virtual string DefaultFilename {
      get { return FilenameFromUrl (Url); }      
    }
    
    [XmlIgnore]
    public abstract string Url {
      get;    
      set;
    }
    
    internal Uri BaseUri 
    {
      get
      {
        int i = Url.IndexOf ("://");
        if (i == -1 || !Uri.CheckSchemeName (Url.Substring (0,i)))
          return new Uri ("file://" + Url);
        else
          return new Uri (Url);
      }
    }
    
    #endregion // Properties

    #region Methods

    public static string FilenameFromUrl (string url)
    {
      if (url.ToLower().EndsWith ("/wsdl"))
        url = url.Substring (0,url.Length-5);
      else if (url.ToLower().EndsWith ("/soap"))
        url = url.Substring (0,url.Length-5);
      else if (url.ToLower().EndsWith ("/wsdl.jsp"))
        url = url.Substring (0,url.Length-9);
      else if (url.ToLower().EndsWith ("/soap.wsdl"))
        url = url.Substring (0,url.Length-10);
      
      int i = url.LastIndexOf ("/");
      if (i != -1) url = url.Substring (i+1);
      
      i = url.IndexOfAny (new char[] {'.','?','\\'});
      if (i != -1) url = url.Substring (0,i);
      
      System.Text.StringBuilder sb = new System.Text.StringBuilder ();
      for (int n=0; n<url.Length; n++)
        if (Char.IsLetterOrDigit (url[n]) || url[n] == '_') sb.Append (url[n]);
        
      return sb.ToString ();
    }
    
    public abstract object ReadDocument (Stream stream);
    
    public void Resolve () 
    {
      if (clientProtocol == null) 
        throw new InvalidOperationException ("The ClientProtocol property is a null reference.");
      
      if (clientProtocol.Documents.Contains (Url))   // Already resolved
        return;
      
      try
      {
        string contentType = null;
        string url = Url;
        Stream stream = clientProtocol.Download (ref url, ref contentType);
        Resolve (contentType, stream);
      }
      catch (Exception ex)
      {
        ReportError (Url, ex);
      }
    }
                
    protected internal abstract void Resolve (string contentType, Stream stream);
    
    public abstract void WriteDocument (object document, Stream stream);

    internal void ReportError (string url, Exception ex)
    {
      if (ex is DiscoveryException) throw ex;
      else throw new DiscoveryException (url, ex);
    }
    
    #endregion // Methods
  }
}